---
product_id: 460796172
title: "2Pcs Aluminum Heat Sink 5.9 x 2.91 x 0.39 Inch Black Heatsinks Fins for Cooler PCB Board LED Motherboard.with Thermal Conductive Adhesive Tape Cooling Fin"
brand: "sgtkjsjs"
price: "¥5965"
currency: JPY
in_stock: true
reviews_count: 8
category: "Sgtkjsjs"
url: https://www.desertcart.jp/products/460796172-2pcs-aluminum-heat-sink-5-9-x-2-91-x
store_origin: JP
region: Japan
---

# 5.9 x 2.91 x 0.39 in Aluminum material Pre-coated thermal tape 2Pcs Aluminum Heat Sink 5.9 x 2.91 x 0.39 Inch Black Heatsinks Fins for Cooler PCB Board LED Motherboard.with Thermal Conductive Adhesive Tape Cooling Fin

**Brand:** sgtkjsjs
**Price:** ¥5965
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep Your Cool with Style!

## Quick Answers

- **What is this?** 2Pcs Aluminum Heat Sink 5.9 x 2.91 x 0.39 Inch Black Heatsinks Fins for Cooler PCB Board LED Motherboard.with Thermal Conductive Adhesive Tape Cooling Fin by sgtkjsjs
- **How much does it cost?** ¥5965 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/460796172-2pcs-aluminum-heat-sink-5-9-x-2-91-x)

## Best For

- sgtkjsjs enthusiasts

## Why This Product

- Trusted sgtkjsjs brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Design:** Crafted from pure aluminum for long-lasting performance.
- • **Sleek Aesthetic:** Stylish black anodized finish complements any tech setup.
- • **Easy Installation:** Comes with pre-coated thermal tape for hassle-free setup.
- • **Versatile Compatibility:** Perfect for a range of electronic applications, from PCs to power amplifiers.
- • **Maximize Cooling Efficiency:** Engineered to enhance airflow and thermal dissipation.

## Overview

This 2-piece set of aluminum heat sinks measures 5.9 x 2.91 x 0.39 inches and is designed to optimize thermal management for various electronic components. Each heat sink features a pre-coated thermal tape backing for easy installation and is ideal for use with power transistors, FETs, ICs, and more. With a sleek black anodized finish, these heat sinks not only perform well but also enhance the aesthetic of your tech setup.

## Description

Materials: Aluminum Color: Black(2PCS) Aluminum Heatsink Size: 5.9 x 2.91 x 0.39 inch / 150 x 74 x 10mm (L*W*H) Weight : 125g/Pcs Base board thickness:2 mm, Fins board thickness:2mm Used for: Various mini DC converter circuit board, LED, Power IC, Transistor etc. Pure aluminum heat sink, which is suitable for electronic, computer, electrical facilities, Widely used in power transistors, FETs, ICs, power amplifiers, voltage regulators, MOSFETs, SCRs, etc Heat sinks are used with high-power semiconductor devices such as power transistors and optoelectronics such as light emitting diodes (LEDs), where the heat dissipation ability of the component itself is insufficient to moderate its temperature.

Review: Easy solution for over cooked laptop power bricks - Five stars unless the adhesive fails at some point. I'm using them for passive cooling on my laptop power brick. For that purpose they fit perfectly. Did a light wipe with rubbing alcohol before sticking them on to assure clean adhesion. They are working, I can feel the warmth radiating when running a heavy power load with a game. The square shape of these also allows the power brick to be set on it's side so both heat sinks can passively radiate. Heat is the enemy of electronics! Keep it cool.
Review: Good quality - The thermal adhesive works great. The heat sync lowered the rep on my Avalon 3S well.

## Features

- ✔Material: Aluminum; Color:black ;125g /pc
- ✔Size: 150 x 74 x10 mm/5.9 x 2.91 x 0.39 inch(L*W*T)
- ✔Pre-coated thermal tape backing, Designed to maximize its surface area in contact with the cool air.
- ✔Pure aluminum heat sink, which is suitable for electronic, computer, electrical facilities, Widely used in power transistors, FETs, ICs, power amplifiers, voltage regulators, MOSFETs, SCRs, etc
- ✔Packaging: Includes 2 black anodized aluminum radiators

## Product Details

- **Brand:** SGTKJSJS
- **Cooler Heatsink Material:** Aluminum
- **Product Dimensions:** 5.9"L x 2.91"W x 0.39"H
- **Item Weight:** 0.3 Kilograms
- **Mounting Type:** Panel Mount

## Images

![2Pcs Aluminum Heat Sink 5.9 x 2.91 x 0.39 Inch Black Heatsinks Fins for Cooler PCB Board LED Motherboard.with Thermal Conductive Adhesive Tape Cooling Fin - Image 1](https://m.media-amazon.com/images/I/61drn8-fTtL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy solution for over cooked laptop power bricks
*by J***K on November 13, 2025*

Five stars unless the adhesive fails at some point. I'm using them for passive cooling on my laptop power brick. For that purpose they fit perfectly. Did a light wipe with rubbing alcohol before sticking them on to assure clean adhesion. They are working, I can feel the warmth radiating when running a heavy power load with a game. The square shape of these also allows the power brick to be set on it's side so both heat sinks can passively radiate. Heat is the enemy of electronics! Keep it cool.

### ⭐⭐⭐⭐⭐ Good quality
*by D***N on December 10, 2025*

The thermal adhesive works great. The heat sync lowered the rep on my Avalon 3S well.

### ⭐⭐⭐⭐⭐ Great for gpu back cooling
*by M***K on December 8, 2025*

Bought it to cool my gpu back. Easy to use shaped two of them and I'm 4k gaming without worrying about anything. adhesive holds very well price was nice it fits nicely two of them on my gpu back (top) surface.

## Frequently Bought Together

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-04*